Today, I did the following tests (and so was touching electronics/cables at/around 1X2):

• Measured the IMC OLTF.
• Measured the TF from injection at IN2 to response at the IMC error point (T-eed the I out of the IMC demodulator as there is no longer a monitor point available).
• Measured the IMC in loop error signal with 0.25 Hz resolution from DC-2kHz.
• Confirmed that the IMC IN2 (a.k.a. AO path) gain slider performs as advertised. This is a useful test to run post Acromag switchover on Friday.

Results to follow.

After this work, I reverted the EPICS channels to the usual values. The IMC can be locked.